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Finding the Fourth Proportional to 75,647.42, 104,392.56 and 41,655.20

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Solution

The fourth proportional to 75,647.42, 104,392.56 and 41,655.20 is: 57,483.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,647.42 : 104,392.56 = 41,655.20 : x
  2. Step 2: Convert to fraction form
    75,647.42/104,392.56 = 41,655.20/x
  3. Step 3: Cross multiply
    75,647.42x = 104,392.56 × 41,655.20
  4. Step 4: Simplify right side
    75,647.42x = 4,348,492,965.31
  5. Step 5: Solve for x
    x = 4,348,492,965.31/75,647.42
  6. Step 6: Final answer
    x = 57,483.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.